Modeling of Wind Generators for Model Predictive Control

This chapter discusses the modeling of wind generators from the model predictive control (MPC) perspective using common notation for both synchronous and induction machines. The active and reactive power reach rated values because of the rated load connected to the generator terminals. The chapter also presents modeling of various control variables, such as stator currents, stator fiux linkages, rotor speed, electromagnetic torque, and stator active and reactive powers, for both Synchronous generators (SG) and induction generator (IG). The predicted currents are compared with the reference currents to identify the power converter switching state that provides the overall minimal error among the three‐phase currents. The rotor winding is connected to a converter through slip rings and brushes or brushless connection. Radial flux (RF)‐permanent magnet synchronous generator (PMSGs) can be constructed with either inner or outer rotors, and the later designs can easily accommodate the multi‐pole structure. The RF‐PMSG offers simple and robust construction and is used by many wind turbine (WT) manufacturers.